Cdh
abbr. constant differential height 常微分顶点
🗣️ 情景例句
I can't believe it!
我简直不敢相信！
None but the wearer knows where the shoe pinches.
只有那个穿鞋人，才知哪里鞋轧脚。
Shall we go to the park?
我们去公园玩好吗？